What are the techniques for arranging balloons in different scenarios?

Family party: Focus on warmth, using the corners of the living room, dining table, and foyer as key decorations to avoid occupying too much activity space; Hotel banquet hall: emphasizing the overall atmosphere, creating a layered sense of the main background wall, arches on both sides of the stage, and small dining table decorations; Outdoor party: Use windproof balloons, add fixing devices, and avoid using lightweight balloons (which are easily blown away by the wind).